A filter paper used in analytical works in laboratories with medium filtration velocity. FILTER 1 QL100 240MM FP=100

Covers a wide range of laboratory applications and is frequently used for clarifying liquids. Whatman™ Qualitative Filter Paper: Grade 1 Circles are widely used standard grade filter papers for routine applications with medium retention and flow rates. X100 Grade 1 Qualitative Filter Paper Standard Grade, circle, 25mm

Retains and absorbs more than Grade 1 filters, with a corresponding increase in filtration time. Whatman™ Qualitative Filter Paper: Grade 2 Circles are used for monitoring specific contaminants in the atmosphere and in soil testing. X100 TYPE 2 38.5CM100/PK FILTER CI

Used in analytical works in laboratories. Fisherbrand™ Grade 601 Cellulose General Purpose Filter Paper has medium filtration velocity. FILTER 1 QL100 85MM FP=100

Recommended when fast filtration of a gelatinous precipitate for gravimetric analysis is performed on a strongly acidic or alkali solution. Whatman™ Quantitative Filter Paper: Grade 541 Circles  are acid hardened cellulose filters, which reduces ash to an extremely low level. X100 TYPE 541 32.0CM/100/PKFILTER

Used for high precipitate capacity and increased wet strength. Whatman™ Qualitative Grade Plain Circles and Sheets - Grade 3 provide double the thickness of Whatman Grade 1. X100 TYPE 3 32.0CM 100/PKFILTER CI

Filters and retains course particles for monitoring air pollution. Whatman™ Qualitative Filter Paper: Grade 4 Circles are used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical. X100 FILTER PAPER GR 4 270MM

Supports collection of coarse and gelatinous precipitates with minimal fiber shredding, even when wet. Whatman™ Grade 54 Quantitative Filter Paper has a hard, smooth surface to sustain vacuum and suction filtration. X100 FILTER PAPER GR. 54 320MM

Used in analytical works in laboratories. Fisherbrand™ Grade 601 Cellulose General Purpose Filter Paper has medium filtration velocity. X100 FILTER 601 DIA 330MM

Filters and retains extremely small particles. Whatman™ Quantitative Filter Paper: Grade 42 Circles are suitable for processes that require ashing. X100 GR. 42 32.0CM/100/PKFILTER

Maintains flow rate with reduced contact between filter and funnel. Whatman™Grade 2555½ Pleated Circles are medium fast filter papers used for the filtration of the mash for the determination of the extract in malt and wort and for removing carbon dioxide from beer. X100 FOLDED FILTERS 2555 1/2240MM

Use for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates or for quantitative air pollution analysis. Whatman™ Quantitative Filter Paper: Grade 41 Circles are commonly used in preparing samples for metal analysis after nitric acid digestion. X100 GR. 41 32.0CM/100/PKFILTER

Very fast filtration velocity. Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper is used for all general works in laboratories. X100 STANDARD FILTER PAPER 150 MM

Saves time required to fit circles into conical funnels. Whatman™ Grade 2V Folded Qualitative Filter Papers provide medium flow and nominal particle retention rating of 8µm at a higher filtration speed. X100 FILTER PAPER FOLDED 2V 125MM

Provides medium retention and flow rate. Whatman™ Grade 1 Qualitative Filter Paper is frequently used in clarifying liquids, soil analysis and seed testing procedures. TYPE 1 47CMX100M FILTERREELS

For fast filtering of particulates. X100 FILTER 111 DIA 270MM

Supports accurate analysis in applications sensitive to very low levels of background contamination. Whatman™ Quantitative Filter Paper: Grade 40 Circles are additionally useful in gravimetric analysis where ash content might affect weight measurements of combusted samples. X400 GR. 40 1.27CM/400/PKFILTER

Fisherbrand™ Grade 115 Cellulose Very Slowly Filtering Qualitative Filter Paper are made of cellulose fibers. X100 FILTER PAPER GR115 210MM

Filters fine particulates. X100 FILTER 113 DIA 200MM

Strengthened with chemically stable resin additive. Whatman™ Qualitative Filter Paper: Grade 113 Circles boast the fastest flow rate of the qualitative grades. Crepe surface promotes ultra high loading capacity. X100 GR. 113 11.0CM/100/PKFILTER

Dissolves residue-free in acid solution, which is critical in applications such as Kjeldahl analysis of nitrogen in soil. Whatman Kjeldahl Analysis Weighing Paper, Grade B-2 is thin, lightweight, and low in nitrogen for accurate chemical analysis. X500 KJELDAHL B2 B-2 12 INCH X 12 INCH (PACK OF500)

Filters particles twice as fast as Whatman Qualitative Filter Paper Grade 5. Whatman™ Qualitative Grade 6 Filters provide fine particle retention for boiler water analysis. X100 GR. 6 4.25CM 100/PKFILTER C

Enhance filtration speed by coagulating precipitates or suspensions to form thick retentive “prefilter” layer on top of normal filter paper. ASHLESS CLIPPINGS /500G

Used for filtration of fatty products and suitable for hot filtrations. X100 FILTER PLEATD 1101 DIA 650MM

Enables strong retention for very fine crystalline precipitates. Whatman™ Quantitative Filter Paper: Grade 50 Circles withstand shredding, wet handling, and precipitate removal by scraping. X100 FILTER PAPER GR. 50 240MM

Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses X100 FOLDED FILTERS 157 3 1/2125MM

Retains the fine precipitates encountered in chemical analysis. Whatman™ Qualitative Filter Paper - Grade 5 Circles are excellent clarifying filters for cloudy suspensions and for water and soil analysis. X100 GR. 5 2.5CM 100/PKFILTER CI

Well-suited for analytical and technical purposes. Sartorius™ Grade 1602/N Creped Surface Qualitative Filter Papers has a fast flow rate due to its structure. X100 FILTER 1602/N 580X580MMStck.)

Used for fine precipitates such as magnesium ammonium phosphate and calcium oxalate. X100 FILTER PAPER GR113 90MM 8µM

Ideal filter papers for analytical purposes and routine analyses when no gravimetric analyses are required. Qualitative Filter Papers / Grade 1228 are wet-strengthened and can be used for pressure and vacuum filtration. X100 ROUND FILTER, VARIETY: 1288, D = 41 MM